[SDL] Conditional jump or move depends on uninitialised value(s)
Spark Around
sparkaround at gmail.com
Fri Mar 16 07:27:25 PDT 2012
Thanks.
Yes, uninitialised message of Valgrind goes away if
SDL_touchPads[index]->x_min = SDL_touchPads[index]->y_min = 0 was
inserted to line 145 of SDL_touch.c.
Here is the new output of Valgrind:
==4656== Memcheck, a memory error detector
==4656== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==4656== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==4656== Command: ./sdlbug
==4656==
==4656==
==4656== HEAP SUMMARY:
==4656== in use at exit: 159,398 bytes in 937 blocks
==4656== total heap usage: 6,386 allocs, 5,449 frees, 3,728,992
bytes allocated
==4656==
==4656== 4 bytes in 1 blocks are definitely lost in loss record 12 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x534B08E: ???
==4656== by 0x53327B1: ???
==4656== by 0x53479CA: ???
==4656== by 0x5347CB0: ???
==4656== by 0x5354ADF: ???
==4656== by 0x4A0EB50: ???
==4656== by 0x400EBE6: call_init (dl-init.c:70)
==4656== by 0x400ED08: _dl_init (dl-init.c:134)
==4656== by 0x4012E79: dl_open_worker (dl-open.c:478)
==4656== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
==4656== by 0x40125A7: _dl_open (dl-open.c:569)
==4656==
==4656== 12 bytes in 1 blocks are definitely lost in loss record 30 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x4DDB510: ???
==4656== by 0x53327B1: ???
==4656== by 0x4DD7BE3: ???
==4656== by 0x4DD7C6C: ???
==4656== by 0x4DD8484: ???
==4656== by 0x4E3B178: ???
==4656== by 0x4D0728E: ???
==4656== by 0x4CF41C7: ???
==4656== by 0x4EEE535: ???
==4656== by 0x4EEEC88: ???
==4656== by 0x4CD43E9: ???
==4656==
==4656== 14 bytes in 2 blocks are definitely lost in loss record 35 of 508
==4656== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
==4656== by 0x47439CA: _XimEncodeString (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4742A14: _XimEncodeLocalICAttr (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4743C25: _XimSetICValueData (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x473EBBA: _XimLocalCreateIC (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4722F2B: XCreateIC (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x40DC4EB: SetupWindowData (SDL_x11window.c:109)
==4656== by 0x40DCA19: X11_CreateWindow (SDL_x11window.c:552)
==4656== by 0x40C0AA6: SDL_CreateWindow (SDL_video.c:1199)
==4656== by 0x40C0F7F: SDL_VideoInit (SDL_video.c:174)
==4656== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
==4656== by 0x4038064: SDL_Init (SDL.c:150)
==4656==
==4656== 14 bytes in 2 blocks are definitely lost in loss record 36 of 508
==4656== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
==4656== by 0x47439CA: _XimEncodeString (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4742A14: _XimEncodeLocalICAttr (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4743C25: _XimSetICValueData (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x473EBBA: _XimLocalCreateIC (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x4722F2B: XCreateIC (in /usr/lib/libX11.so.6.3.0)
==4656== by 0x40DC4EB: SetupWindowData (SDL_x11window.c:109)
==4656== by 0x40DCA19: X11_CreateWindow (SDL_x11window.c:552)
==4656== by 0x40C0AA6: SDL_CreateWindow (SDL_video.c:1199)
==4656== by 0x8048620: main (sdlbug.c:7)
==4656==
==4656== 20 (12 direct, 8 indirect) bytes in 1 blocks are definitely
lost in loss record 138 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x532D933: ???
==4656== by 0x4CE9530: ???
==4656== by 0x4CF3905: ???
==4656== by 0x4CF3AD2: ???
==4656== by 0x4CA1287: ???
==4656== by 0x4CA1322: ???
==4656== by 0x4A53868: ???
==4656== by 0x4A6B718: ???
==4656== by 0x4A14459: ???
==4656== by 0x4A10BA2: ???
==4656== by 0x4A10C03: ???
==4656==
==4656== 36 (12 direct, 24 indirect) bytes in 1 blocks are definitely
lost in loss record 298 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x4DFE523: ???
==4656== by 0x53327B1: ???
==4656== by 0x5344651: ???
==4656== by 0x4CE19AA: ???
==4656== by 0x4CE1AE5: ???
==4656== by 0x4CDC7D9: ???
==4656== by 0x4CD427E: ???
==4656== by 0x4CD4559: ???
==4656== by 0x4CE95BE: ???
==4656== by 0x4CF3905: ???
==4656== by 0x4CF3AD2: ???
==4656==
==4656== 36 (12 direct, 24 indirect) bytes in 1 blocks are definitely
lost in loss record 299 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x4DFE523: ???
==4656== by 0x53327B1: ???
==4656== by 0x5298BEA: ???
==4656== by 0x528B036: ???
==4656== by 0x528D6E7: ???
==4656== by 0x5354ADF: ???
==4656== by 0x4A0EB50: ???
==4656== by 0x400EBE6: call_init (dl-init.c:70)
==4656== by 0x400ED08: _dl_init (dl-init.c:134)
==4656== by 0x4012E79: dl_open_worker (dl-open.c:478)
==4656== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
==4656==
==4656== 64 (40 direct, 24 indirect) bytes in 1 blocks are definitely
lost in loss record 321 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x4CD2816: ???
==4656== by 0x53327B1: ???
==4656== by 0x4CD444E: ???
==4656== by 0x4CD4559: ???
==4656== by 0x4CE95BE: ???
==4656== by 0x4CF3905: ???
==4656== by 0x4CF3AD2: ???
==4656== by 0x4CA1287: ???
==4656== by 0x4CA1322: ???
==4656== by 0x4A53868: ???
==4656== by 0x4A6B718: ???
==4656==
==4656== 112 bytes in 1 blocks are definitely lost in loss record 351 of 508
==4656== at 0x4025BE5: calloc (vg_replace_malloc.c:566)
==4656== by 0x48A79D8: driswCreateScreen (drisw_glx.c:626)
==4656== by 0x488543E: __glXInitialize (glxext.c:784)
==4656== by 0x4881D6A: GetGLXPrivScreenConfig (glxcmds.c:176)
==4656== by 0x4883056: glXChooseVisual (glxcmds.c:1234)
==4656== by 0x40D9D14: X11_GL_InitExtensions (SDL_x11opengl.c:434)
==4656== by 0x40DA3E6: X11_GL_LoadLibrary (SDL_x11opengl.c:186)
==4656== by 0x40BDFFF: SDL_GL_LoadLibrary (SDL_video.c:2135)
==4656== by 0x40C09D9: SDL_CreateWindow (SDL_video.c:1167)
==4656== by 0x40C0F7F: SDL_VideoInit (SDL_video.c:174)
==4656== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
==4656== by 0x4038064: SDL_Init (SDL.c:150)
==4656==
==4656== 190 (100 direct, 90 indirect) bytes in 1 blocks are
definitely lost in loss record 374 of 508
==4656== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
==4656== by 0x4065EC2: SDL_AddTouch (SDL_touch.c:120)
==4656== by 0x40DABE4: X11_InitTouch (SDL_x11touch.c:90)
==4656== by 0x40DB4DF: X11_VideoInit (SDL_x11video.c:367)
==4656== by 0x40C0E76: SDL_VideoInit (SDL_video.c:507)
==4656== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
==4656== by 0x4038064: SDL_Init (SDL.c:150)
==4656== by 0x80485EC: main (sdlbug.c:6)
==4656==
==4656== 8,439 (4 direct, 8,435 indirect) bytes in 1 blocks are
definitely lost in loss record 505 of 508
==4656== at 0x4027984: operator new(unsigned int) (vg_replace_malloc.c:282)
==4656== by 0x5298E5E: ???
==4656== by 0x53327B1: ???
==4656== by 0x52973CA: ???
==4656== by 0x528B02A: ???
==4656== by 0x528D6E7: ???
==4656== by 0x5354ADF: ???
==4656== by 0x4A0EB50: ???
==4656== by 0x400EBE6: call_init (dl-init.c:70)
==4656== by 0x400ED08: _dl_init (dl-init.c:134)
==4656== by 0x4012E79: dl_open_worker (dl-open.c:478)
==4656== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
==4656==
==4656== 109,189 (28 direct, 109,161 indirect) bytes in 1 blocks are
definitely lost in loss record 508 of 508
==4656== at 0x4025BE5: calloc (vg_replace_malloc.c:566)
==4656== by 0x4CA1313: ???
==4656== by 0x4A53868: ???
==4656== by 0x4A6B718: ???
==4656== by 0x4A14459: ???
==4656== by 0x4A10BA2: ???
==4656== by 0x4A10C03: ???
==4656== by 0x4A10C3D: ???
==4656== by 0x48A797B: drisw_create_context (drisw_glx.c:404)
==4656== by 0x4882552: CreateContext (glxcmds.c:276)
==4656== by 0x48837D1: glXCreateContext (glxcmds.c:381)
==4656== by 0x40D9E05: X11_GL_InitExtensions (SDL_x11opengl.c:278)
==4656==
==4656== LEAK SUMMARY:
==4656== definitely lost: 364 bytes in 14 blocks
==4656== indirectly lost: 117,766 bytes in 456 blocks
==4656== possibly lost: 0 bytes in 0 blocks
==4656== still reachable: 41,268 bytes in 467 blocks
==4656== suppressed: 0 bytes in 0 blocks
==4656== Reachable blocks (those to which a pointer was found) are not shown.
==4656== To see them, rerun with: --leak-check=full --show-reachable=yes
==4656==
==4656== For counts of detected and suppressed errors, rerun with: -v
==4656== ERROR SUMMARY: 12 errors from 12 contexts (suppressed: 194 from 13)
On Fri, Mar 16, 2012 at 10:08 PM, Patrick Baggett
<baggett.patrick at gmail.com> wrote:
> http://hg.libsdl.org/SDL/file/6bb657898f55/src/events/SDL_touch.c
>
> Line 130-146 seems initialize the SDL_Touch structure's various fields.
>
> 130 SDL_touchPads[index]->focus = 0;
>
> 131 SDL_touchPads[index]->name = SDL_malloc((length + 2) *
> sizeof(char));
>
> 132 SDL_strlcpy(SDL_touchPads[index]->name, name, length + 1);
>
> 133
>
> 134 SDL_touchPads[index]->num_fingers = 0;
>
> 135 SDL_touchPads[index]->max_fingers = 1;
>
> 136 SDL_touchPads[index]->fingers = (SDL_Finger **)
> SDL_malloc(sizeof(SDL_Finger*));
>
> 137 SDL_touchPads[index]->fingers[0] = NULL;
>
> 138 SDL_touchPads[index]->buttonstate = 0;
>
> 139 SDL_touchPads[index]->relative_mode = SDL_FALSE;
>
> 140 SDL_touchPads[index]->flush_motion = SDL_FALSE;
>
> 141
>
> 142 SDL_touchPads[index]->xres = (1<<(16-1));
>
> 143 SDL_touchPads[index]->yres = (1<<(16-1));
>
> 144 SDL_touchPads[index]->pressureres = (1<<(16-1));
>
> then Line 353 (valgrind)
>
> if(xin < touch->x_min || yin < touch->y_min) return 0; //should defer if
> only a partial input
>
>
>
> I don't see where touch->x_min and touch->y_min get initialized, so you may
> have a legitimate bug here. The easiest way to tell (if you're compiling
> from source) is to modify SDL_touch.c around line 145 and add something like
> SDL_touchPads[index]->x_min = SDL_touchPads[index]->y_min = 0; and see if
> the Valgrind message goes away. That isn't to say that is a proper fix by
> any means -- but it would definitely tell if those fields were uninitialized
> and used.
>
>
> On Fri, Mar 16, 2012 at 8:54 AM, Spark Around <sparkaround at gmail.com> wrote:
>>
>> Valgrind always report "Conditional jump or move depends on
>> uninitialised value(s) " when I press some key to exit the event loop
>> for application based on SDL2.
>>
>> Is valgrind wrong? Or is there problem in SDL?
>>
>> The attachment is an lame example named sdlbug.c (without checking the
>> return value of SDL_Init).
>> Link sdlbug.c with SDL2 rev 6303 on 32bits gentoo linux. Run the
>> application with valgrind:
>>
>> valgrind --leak-check=full --track-origins=yes ./sdlbug
>>
>> When I press ESCAPE, the application terminates and valgrind print
>> errors like this:
>>
>> ==3494== Memcheck, a memory error detector
>> ==3494== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
>> ==3494== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
>> ==3494== Command: ./sdlbug
>> ==3494==
>> ==3494== Conditional jump or move depends on uninitialised value(s)
>> ==3494== at 0x4066977: SDL_SendFingerDown (SDL_touch.c:353)
>> ==3494== by 0x40D5C90: X11_PumpEvents (SDL_x11events.c:601)
>> ==3494== by 0x4061063: SDL_PumpEvents (SDL_events.c:303)
>> ==3494== by 0x4061599: SDL_WaitEventTimeout (SDL_events.c:336)
>> ==3494== by 0x4061674: SDL_PollEvent (SDL_events.c:318)
>> ==3494== by 0x804865D: main (sdlbug.c:14)
>> ==3494== Uninitialised value was created by a stack allocation
>> ==3494== at 0x40DA8B1: X11_InitTouch (SDL_x11touch.c:37)
>> ==3494==
>> ==3494==
>> ==3494== HEAP SUMMARY:
>> ==3494== in use at exit: 159,398 bytes in 937 blocks
>> ==3494== total heap usage: 6,292 allocs, 5,355 frees, 3,726,924
>> bytes allocated
>> ==3494==
>> ==3494== 4 bytes in 1 blocks are definitely lost in loss record 12 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x534B08E: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x53479CA: ???
>> ==3494== by 0x5347CB0: ???
>> ==3494== by 0x5354ADF: ???
>> ==3494== by 0x4A0EB50: ???
>> ==3494== by 0x400EBE6: call_init (dl-init.c:70)
>> ==3494== by 0x400ED08: _dl_init (dl-init.c:134)
>> ==3494== by 0x4012E79: dl_open_worker (dl-open.c:478)
>> ==3494== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
>> ==3494== by 0x40125A7: _dl_open (dl-open.c:569)
>> ==3494==
>> ==3494== 12 bytes in 1 blocks are definitely lost in loss record 30 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x4DDB510: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x4DD7BE3: ???
>> ==3494== by 0x4DD7C6C: ???
>> ==3494== by 0x4DD8484: ???
>> ==3494== by 0x4E3B178: ???
>> ==3494== by 0x4D0728E: ???
>> ==3494== by 0x4CF41C7: ???
>> ==3494== by 0x4EEE535: ???
>> ==3494== by 0x4EEEC88: ???
>> ==3494== by 0x4CD43E9: ???
>> ==3494==
>> ==3494== 14 bytes in 2 blocks are definitely lost in loss record 35 of 508
>> ==3494== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
>> ==3494== by 0x47439CA: _XimEncodeString (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4742A14: _XimEncodeLocalICAttr (in
>> /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4743C25: _XimSetICValueData (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x473EBBA: _XimLocalCreateIC (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4722F2B: XCreateIC (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x40DC4DB: SetupWindowData (SDL_x11window.c:109)
>> ==3494== by 0x40DCA09: X11_CreateWindow (SDL_x11window.c:552)
>> ==3494== by 0x40C0A96: SDL_CreateWindow (SDL_video.c:1199)
>> ==3494== by 0x40C0F6F: SDL_VideoInit (SDL_video.c:174)
>> ==3494== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
>> ==3494== by 0x4038064: SDL_Init (SDL.c:150)
>> ==3494==
>> ==3494== 14 bytes in 2 blocks are definitely lost in loss record 36 of 508
>> ==3494== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
>> ==3494== by 0x47439CA: _XimEncodeString (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4742A14: _XimEncodeLocalICAttr (in
>> /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4743C25: _XimSetICValueData (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x473EBBA: _XimLocalCreateIC (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x4722F2B: XCreateIC (in /usr/lib/libX11.so.6.3.0)
>> ==3494== by 0x40DC4DB: SetupWindowData (SDL_x11window.c:109)
>> ==3494== by 0x40DCA09: X11_CreateWindow (SDL_x11window.c:552)
>> ==3494== by 0x40C0A96: SDL_CreateWindow (SDL_video.c:1199)
>> ==3494== by 0x8048620: main (sdlbug.c:7)
>> ==3494==
>> ==3494== 20 (12 direct, 8 indirect) bytes in 1 blocks are definitely
>> lost in loss record 138 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x532D933: ???
>> ==3494== by 0x4CE9530: ???
>> ==3494== by 0x4CF3905: ???
>> ==3494== by 0x4CF3AD2: ???
>> ==3494== by 0x4CA1287: ???
>> ==3494== by 0x4CA1322: ???
>> ==3494== by 0x4A53868: ???
>> ==3494== by 0x4A6B718: ???
>> ==3494== by 0x4A14459: ???
>> ==3494== by 0x4A10BA2: ???
>> ==3494== by 0x4A10C03: ???
>> ==3494==
>> ==3494== 36 (12 direct, 24 indirect) bytes in 1 blocks are definitely
>> lost in loss record 298 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x4DFE523: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x5344651: ???
>> ==3494== by 0x4CE19AA: ???
>> ==3494== by 0x4CE1AE5: ???
>> ==3494== by 0x4CDC7D9: ???
>> ==3494== by 0x4CD427E: ???
>> ==3494== by 0x4CD4559: ???
>> ==3494== by 0x4CE95BE: ???
>> ==3494== by 0x4CF3905: ???
>> ==3494== by 0x4CF3AD2: ???
>> ==3494==
>> ==3494== 36 (12 direct, 24 indirect) bytes in 1 blocks are definitely
>> lost in loss record 299 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x4DFE523: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x5298BEA: ???
>> ==3494== by 0x528B036: ???
>> ==3494== by 0x528D6E7: ???
>> ==3494== by 0x5354ADF: ???
>> ==3494== by 0x4A0EB50: ???
>> ==3494== by 0x400EBE6: call_init (dl-init.c:70)
>> ==3494== by 0x400ED08: _dl_init (dl-init.c:134)
>> ==3494== by 0x4012E79: dl_open_worker (dl-open.c:478)
>> ==3494== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
>> ==3494==
>> ==3494== 64 (40 direct, 24 indirect) bytes in 1 blocks are definitely
>> lost in loss record 321 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x4CD2816: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x4CD444E: ???
>> ==3494== by 0x4CD4559: ???
>> ==3494== by 0x4CE95BE: ???
>> ==3494== by 0x4CF3905: ???
>> ==3494== by 0x4CF3AD2: ???
>> ==3494== by 0x4CA1287: ???
>> ==3494== by 0x4CA1322: ???
>> ==3494== by 0x4A53868: ???
>> ==3494== by 0x4A6B718: ???
>> ==3494==
>> ==3494== 112 bytes in 1 blocks are definitely lost in loss record 351 of
>> 508
>> ==3494== at 0x4025BE5: calloc (vg_replace_malloc.c:566)
>> ==3494== by 0x48A79D8: driswCreateScreen (drisw_glx.c:626)
>> ==3494== by 0x488543E: __glXInitialize (glxext.c:784)
>> ==3494== by 0x4881D6A: GetGLXPrivScreenConfig (glxcmds.c:176)
>> ==3494== by 0x4883056: glXChooseVisual (glxcmds.c:1234)
>> ==3494== by 0x40D9D04: X11_GL_InitExtensions (SDL_x11opengl.c:434)
>> ==3494== by 0x40DA3D6: X11_GL_LoadLibrary (SDL_x11opengl.c:186)
>> ==3494== by 0x40BDFEF: SDL_GL_LoadLibrary (SDL_video.c:2135)
>> ==3494== by 0x40C09C9: SDL_CreateWindow (SDL_video.c:1167)
>> ==3494== by 0x40C0F6F: SDL_VideoInit (SDL_video.c:174)
>> ==3494== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
>> ==3494== by 0x4038064: SDL_Init (SDL.c:150)
>> ==3494==
>> ==3494== 190 (100 direct, 90 indirect) bytes in 1 blocks are
>> definitely lost in loss record 374 of 508
>> ==3494== at 0x4026EE1: malloc (vg_replace_malloc.c:263)
>> ==3494== by 0x4065EC2: SDL_AddTouch (SDL_touch.c:120)
>> ==3494== by 0x40DABD4: X11_InitTouch (SDL_x11touch.c:90)
>> ==3494== by 0x40DB4CF: X11_VideoInit (SDL_x11video.c:367)
>> ==3494== by 0x40C0E66: SDL_VideoInit (SDL_video.c:507)
>> ==3494== by 0x4037FFB: SDL_InitSubSystem (SDL.c:74)
>> ==3494== by 0x4038064: SDL_Init (SDL.c:150)
>> ==3494== by 0x80485EC: main (sdlbug.c:6)
>> ==3494==
>> ==3494== 8,439 (4 direct, 8,435 indirect) bytes in 1 blocks are
>> definitely lost in loss record 505 of 508
>> ==3494== at 0x4027984: operator new(unsigned int)
>> (vg_replace_malloc.c:282)
>> ==3494== by 0x5298E5E: ???
>> ==3494== by 0x53327B1: ???
>> ==3494== by 0x52973CA: ???
>> ==3494== by 0x528B02A: ???
>> ==3494== by 0x528D6E7: ???
>> ==3494== by 0x5354ADF: ???
>> ==3494== by 0x4A0EB50: ???
>> ==3494== by 0x400EBE6: call_init (dl-init.c:70)
>> ==3494== by 0x400ED08: _dl_init (dl-init.c:134)
>> ==3494== by 0x4012E79: dl_open_worker (dl-open.c:478)
>> ==3494== by 0x400E7F6: _dl_catch_error (dl-error.c:178)
>> ==3494==
>> ==3494== 109,189 (28 direct, 109,161 indirect) bytes in 1 blocks are
>> definitely lost in loss record 508 of 508
>> ==3494== at 0x4025BE5: calloc (vg_replace_malloc.c:566)
>> ==3494== by 0x4CA1313: ???
>> ==3494== by 0x4A53868: ???
>> ==3494== by 0x4A6B718: ???
>> ==3494== by 0x4A14459: ???
>> ==3494== by 0x4A10BA2: ???
>> ==3494== by 0x4A10C03: ???
>> ==3494== by 0x4A10C3D: ???
>> ==3494== by 0x48A797B: drisw_create_context (drisw_glx.c:404)
>> ==3494== by 0x4882552: CreateContext (glxcmds.c:276)
>> ==3494== by 0x48837D1: glXCreateContext (glxcmds.c:381)
>> ==3494== by 0x40D9DF5: X11_GL_InitExtensions (SDL_x11opengl.c:278)
>> ==3494==
>> ==3494== LEAK SUMMARY:
>> ==3494== definitely lost: 364 bytes in 14 blocks
>> ==3494== indirectly lost: 117,766 bytes in 456 blocks
>> ==3494== possibly lost: 0 bytes in 0 blocks
>> ==3494== still reachable: 41,268 bytes in 467 blocks
>> ==3494== suppressed: 0 bytes in 0 blocks
>> ==3494== Reachable blocks (those to which a pointer was found) are not
>> shown.
>> ==3494== To see them, rerun with: --leak-check=full --show-reachable=yes
>> ==3494==
>> ==3494== For counts of detected and suppressed errors, rerun with: -v
>> ==3494== ERROR SUMMARY: 13 errors from 13 contexts (suppressed: 194 from
>> 13)
>>
>> Check the attachment for the lame code sdlbug.c (without checking
>> return value of SDL_Init).
>>
>> Thanks.
>>
>> _______________________________________________
>> SDL mailing list
>> SDL at lists.libsdl.org
>> http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org
>>
>
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